1051156490 has 16 divisors (see below), whose sum is σ = 1910817000. Its totient is φ = 416299200.

The previous prime is 1051156481. The next prime is 1051156493. The reversal of 1051156490 is 946511501.

It can be written as a sum of positive squares in 4 ways, for example, as 996854329 + 54302161 = 31573^2 + 7369^2 .

It is a super-2 number, since 2×1051156490² = 2209859932938240200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051156493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519365 + ... + 521384.

Almost surely, 2^1051156490 is an apocalyptic number.

1051156490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1051156490 is a deficient number, since it is larger than the sum of its proper divisors (859660510).

1051156490 is a wasteful number, since it uses less digits than its factorization.

1051156490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040857.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1051156490 is about 32421.5436091498. The cubic root of 1051156490 is about 1016.7693793328.

Adding to 1051156490 its reverse (946511501), we get a palindrome (1997667991).

The spelling of 1051156490 in words is "one billion, fifty-one million, one hundred fifty-six thousand, four hundred ninety".